This circuit generates noise pulses for audio equipment probes. The circuit is from a 90’s 303 Circuits. The operational amplifier is an input FET type.
This circuit was found in the July 1993 issue of Radio Electronics magazine. Based on an AD532, it...
This power supply, found in an Argentine publication from the 1970s, uses a wire potentiometer of 25 W or more...
This field effect transistor amplifier circuit in common gate or common port configuration is from an old...